A delivery system comprising an endoluminal device, an outer sheath that radially surrounds the endoluminal device, a pusher positioned at one end of the endoluminal device, and a linkage between the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction. This delivery system is particularly useful for endoluminal devices that foreshorten, and may comprise the outer sheath moving a first distance (d1) and the pusher moving a second distance (d2), where d2/d1 is approximately equal to the foreshortening ratio. The delivery system of this invention enables a foreshortening device, such as a vena cava filter, or stent, graft, or combination thereof, to be deployed with its end in a precise deployment location without foreshortening causing the end to move from the deployment location as the stent expands.

Patent
   7052511
Priority
Apr 04 2002
Filed
Apr 04 2002
Issued
May 30 2006
Expiry
Oct 03 2023
Extension
547 days
Assg.orig
Entity
Large
229
15
all paid
38. A delivery system for an endoluminal device, the delivery system comprising:
an endoluminal device having a compressed configuration;
an outer sheath that radially surrounds the endoluminal device in the compressed configuration;
a pusher positioned at one end of the endoluminal device;
a linkage in communication with both the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction; and
an actuatable clutch mechanism coupled to the linkage that reversibly disengages the linkage from the pusher or the outer sheath, or both.
1. A delivery system for an endoluminal device, the delivery system comprising:
an endoluminal device having a compressed configuration;
an outer sheath that radially surrounds the endoluminal device in the compressed configuration;
a pusher positioned at one end of the endoluminal device;
a linkage, comprising a first pinion and a second pinion coaxially coupled to the first pinion, in communication with both the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction; and
an actuatable clutch mechanism for preventing the simultaneous movement of the outer sheath and the pusher when engaged.
21. A manipulator for a delivery system for an endoluminal device, the delivery system comprising an outer sheath that radially surrounds the endoluminal device in a compressed configuration and a pusher positioned at one end of the endoluminal device, the manipulator comprising a first interface for connecting the manipulator in communication with the outer sheath, a second interface for connecting the manipulator in communication with the pusher, a linkage, comprising a first pinion and a second pinion coaxially coupled to the first pinion, coupled to the first and second interface for coordinating movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction, and comprising an actuatable clutch mechanism for preventing simultaneous movement of the outer sheath and the pusher when engaged.
27. A delivery system adapted to deliver an endoluminal device from a proximal location outside a lumen to a distal location inside the lumen, the delivery system comprising:
the endoluminal device in a compressed configuration, the endoluminal device having a compressed length (LC ), an expanded length (LE), and a foreshortening ratio
( L C - L E L E )
greater than 0;
a proximally retractable outer sheath that radially surrounds the endoluminal device;
a distally advanceable pusher positioned at a proximal end of the endoluminal device;
a rack and pinion system in communication with both the pusher and the outer sheath that coordinates retraction of the outer sheath a first distance of retraction (d1) with simultaneous advancement of the pusher a second distance of advancement (d2) of the pusher, the rack and pinion system comprising a first rack attached to the outer sheath, a second rack attached to the pusher, and a pair of coaxial, rotationally-interlocked pinions supported between the first rack and the second rack, the pair of coaxial, rotationally-interlocked pinions comprising a first pinion having a first diameter (D1) adapted to interface with the first rack and a second pinion (D2) having a second, relatively smaller diameter adapted to interface with the second rack, wherein the gear ratio
( D 2 D 1 )
is approximately equal to the foreshortening ratio; and
an actuatable clutch mechanism for preventing simultaneous movement of the outer sheath and the pusher when engaged.
2. The delivery system of claim 1, wherein the endoluminal device has a compressed length (LC), an expanded length (LE), and a foreshortening ratio
( L C - L E L E )
greater than 0.
3. The delivery system of claim 2, wherein the delivery system is adapted to deliver the endoluminal device from a proximal location outside a lumen to a distal location inside the lumen, the pusher is positioned at the proximal end of the stent, the first direction is a proximal direction, and the second direction is a distal direction.
4. The delivery system of claim 3, wherein the linkage coordinates a first distance of proximal retraction (d1) of the outer sheath to a second distance (d2) of distal advancement of the pusher.
5. The delivery system of claim 4, wherein the second distance divided by the first distance
( d 2 d 1 )
is approximately equal to the foreshortening ratio.
6. The delivery system of claim 1, wherein the linkage further comprises a rack to form a rack and pinion system.
7. The delivery system of claim 6, wherein the rack and pinion system comprises a first rack in linear communication with the outer sheath, a second rack in linear communication with the pusher, and the first pinion and the second pinion are rotationally-interlocked and supported between the first rack and the second rack, the first pinion having a first diameter adapted to interface with the first rack and the second pinion having a second, relatively smaller diameter adapted to interface with the second rack.
8. The delivery system of claim 7, further comprising a casing disposed about the linkage, and a bearing in the casing for supporting a shaft on which the pinions are mounted.
9. The delivery system of claim 8, wherein the casing further comprises one or more first inwardly disposed brackets for slidably supporting the first rack and one or more second inwardly disposed brackets for slidably supporting the second rack.
10. The delivery system of claim 7 further comprising a member in rotational communication with the pinions to cause the outer sheath and the pusher to simultaneously move.
11. The delivery system of claim 10, wherein the member comprises a dial.
12. The delivery system of claim 11, wherein the dial is rotationally interlocked to the pinions and has a diameter greater than the first diameter.
13. The delivery system of claim 1, wherein the endoluminal device comprises a stent, graft, or combination thereof.
14. The stent delivery system of claim 1, wherein the endoluminal device comprises a vena cava filter.
15. The delivery system of claim 1 further comprising an inner member extending axially through the endoluminal device and the pusher and connected to a distal tip positioned distally of a distal end of the endoluminal device.
16. The delivery system of claim 1 further comprising means for actuating the linkage to cause the outer sheath to retract and the pusher to advance.
17. The delivery system of claim 16, wherein the actuating means comprises a handle in linear communication with the outer sheath.
18. The delivery system of claim 16, wherein the means comprises a slide in linear communication with the pusher.
19. The delivery system of claim 1, wherein the linkage provides transmission means for enabling a user to manipulate the linkage using less force than is required to simultaneously move the outer sheath in the first direction and the pusher in the second direction.
20. The delivery system of claim 1 further comprising indicia for indicating to a user of the delivery system when to engage or disengage the clutch mechanism.
22. The manipulator of claim 21, wherein the manipulator is detachable from the delivery system.
23. The manipulator of claim 22, wherein the manipulator is reusable.
24. The manipulator of claim 23, wherein the manipulator comprises a material of construction adapted to withstand exposure to a predetermined temperature for a predetermined amount of time effective to sterilize the manipulator without the manipulator being damaged.
25. The manipulator of claim 24, wherein the manipulator comprises stainless steel.
26. The manipulator of claim 21 further comprising indicia for indicating to a user of the delivery system when to engage or disengage the clutch mechanism.
28. The delivery system of claim 27, wherein the endoluminal device comprises a vena cava filter.
29. The delivery system of claim 27, wherein the endoluminal device comprises a stent, graft, or combination thereof.
30. The delivery system of claim 29, wherein the endoluminal device comprises a stent comprising at least one portion having braided architecture and at least one portion having non-braided architecture.
31. The delivery system of claim 29, further comprising an inner member coaxial with the pusher, the outer sheath, and the stent, the inner member further comprising one or more protrusions for engaging the compressed stent.
32. The delivery system of claim 31, wherein the inner member is connected to a proximal handle and a distal tip.
33. The delivery system of claim 27 further comprising a casing surrounding the racks and pinions, wherein the clutch mechanism comprises a first member interposed between the casing and at least one of the pinions for biasing the pinions in engagement with the racks, and a second member moveable to engage one or more of the pinions, overcome the bias of the first member, and disengage the pinions from the racks.
34. The delivery system of claim 33, wherein the first member is a first spring and the second member comprises a button having a first end that protrudes from the casing and a second end that is positioned within the casing for engaging the one or more pinions, the system further comprising a second spring biasing the button in a position not in engagement with the one or more pinions.
35. The delivery system of claim 27 further comprising indicia for indicating to a user of the delivery system when to engage or disengage the clutch mechanism.
36. The delivery system of claim 35, wherein the indicia comprises a coded portion of the first rack.
37. The delivery system of claim 35, wherein the system comprises a dial rotationally interlocked with the pinions, the indicia comprises a coded portion of the dial.

This invention relates generally to delivery systems for endoluminal devices, and, more specifically, to delivery systems for endoluminal devices that undergo a decrease in length when being expanded from a radially compressed configuration.

Endoluminal devices comprise the general category of devices, such as stents, grafts, combinations thereof commonly referred to as stent-grafts or endoluminal prostheses, vena cava filters, and the like, that may be implanted in a body lumen. Endoluminal devices may be implanted by so-called “minimally invasive techniques” in which the prosthesis, restrained in a radially compressed configuration by a sheath or catheter, is delivered by a deployment system or “introducer” to the site where it is required. The introducer may enter the body through the patient's skin, or by a “cut down” technique in which the entry lumen, such as a blood vessel, is exposed by minor surgical means. When the introducer has been threaded into the body lumen to the prosthesis deployment location, the introducer is manipulated to cause the endoluminal device to be ejected from the surrounding sheath or catheter in which it is restrained (or alternatively the surrounding sheath or catheter is retracted from the endoluminal device), whereupon the endoluminal device expands to a predetermined diameter at the deployment location, and the introducer is withdrawn.

As referred to herein, “distal” refers to the direction further away from the insertion point and “proximal” refers to the direction closer to the insertion point. Endoluminal devices, such as stents and vena cava filters, may expand by spring elasticity, balloon expansion, or by the self-expansion of a thermally or stress-induced return of a memory material to a pre-conditioned expanded configuration.

Various types of endoluminal device architectures, are known in the art, including many designs comprising a filament or number of filaments, such as a wire or wires, wound or braided into a particular configuration. Included among these configurations are braided stents, such as is described in U.S. Pat. No. 4,655,771 to Hans I. Wallsten and incorporated herein by reference; the '771 Wallsten patent is only one example of many variations of braided architecture known in the art and thus is not intended as a limitation of the invention described herein later. Braided endoluminal devices tend to be very flexible, having the ability to be placed in tortuous anatomy and still maintain patency. The flexibility of braided stents make them particularly well-suited for treating aneurysms in the aorta, where often the lumen of the vessel becomes contorted and irregular both before and after placement of the stent.

Many braided endoluminal devices experience “foreshortening” when deployed in a body lumen. Referring now to FIGS. 1A–1C, showing an exemplary delivery system 20 of the prior art, stent 10 may have a first length LC when radially compressed as shown in FIG. 1A and a second, shorter length LE when radially expanded, as shown in FIG. 1C. The “foreshortening ratio”

L C - L E L E
can be used as a measure of the relative change in length. Braided endoluminal devices typically have a relatively large foreshortening ratio as compared to non-braided endoluminal devices. The foreshortening ratio is a function of compressed diameter, deployed diameter, and the braid angle. If these variables are known, the endoluminal device has a predictable foreshortening ratio.

Foreshortening may affect the deployment accuracy of endoluminal devices. Describing delivery system 20 now in more detail, the delivery system comprises a handle 22, a tip 24, an inner member 26 attached to the tip and the handle, a pusher 27 positioned proximally of stent 10, and an outer sheath 28 slidable relative to the inner member and pusher. Inner member 26 may have one or more protrusions 25 thereon for engaging the stent during deployment, such as are disclosed in U.S. Pat. No. 6,607,551 to Sullivan et al., incorporated herein by reference. Stent 10 may be a braided stent having a wound end 11, such as is described in U.S. Pat. No. 6,585,758 to Chouinard et al. and incorporated herein by reference. Delivery system 20 is maneuvered into the body lumen (not shown) so that the distal end 12 of stent 10 is aligned with a desired deployment location 29 in the lumen, as shown in FIG. 1A. FIGS. 1A–1C are shown in vertical alignment with one another on the page so that desired deployment location 29 is in the same horizontal position in all figures for illustrative purposes.

To deploy the stent, outer sheath 28 is retracted in the direction of arrow A as shown in FIG. 1B. As stent 10 begins to deploy, it also foreshortens, causing distal end 12 of stent 10 to be move proximally from the desired deployment location 29. Thus, after full deployment as shown in FIG. 1C, continued foreshortening during deployment may cause the ultimate resting position of distal end 12 to be a distance dL from the desired deployment location 29. This distance dL is typically approximately the difference in length between the radially compressed length LC and the expanded length LE. In some cases, distal end 12 of stent 10 may frictionally engage a portion of the body lumen in which the stent is being deployed before the stent is completely deployed. In such cases, a portion of the length accounting for the difference between the compressed length LC and the expanded length LE of the stent will be proximal to the deployed stent. Thus, even though this distance may be predictable, practitioners must determine the correct place to start deployment based upon where the end of the stent is expected to land after foreshortening. Deploying such stents with accuracy, therefore, takes repeated practice and is prone to error.

It is therefore desirable to minimize the impact of foreshortening of braided endoluminal devices during deployment so that such endoluminal devices can be more accurately deployed.

One aspect of the invention comprises a delivery system for an endoluminal device, such as a vena cava filter, or stent, graft, or combination thereof. The delivery system comprises an endoluminal device having a compressed configuration, an outer sheath that radially surrounds the endoluminal device in its compressed configuration, a pusher positioned at one end of the endoluminal device, and a linkage between the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction. This delivery system is particularly useful for endoluminal devices having a compressed length (LC), an expanded length (LE), and a foreshortening ratio

( L C - L E L E )
greater than 0. In such an embodiment, the linkage preferably coordinates a first distance of proximal retraction (d1) of the outer sheath with a second distance (d2) of distal advancement of the pusher, so that the second distance divided by the first distance

( d 2 d 1 )
is approximately equal to the foreshortening ratio. The linkage may provide mechanical advantage that enables a user to manipulate the linkage using less force than is required to simultaneously move the outer sheath in the first direction and the pusher in the second direction.

In one aspect of the invention, the linkage may comprise a rack and pinion system. The rack and pinion system comprises a first rack in communication with the outer sheath, a second rack in linear communication with the pusher, and a pair of rotationally-interlocked pinions supported between the first rack and the second rack. The pair of rotationally-interlocked pinions comprise a first pinion having a first diameter adapted to interface with the first rack and a second pinion having a second, relatively smaller diameter adapted to interface with the second rack. A member, such as a dial with a larger diameter than the first pinion, may be rotationally interlocked to the pinions for rotating the pinions to cause the outer sheath and the pusher to simultaneously move. The system may comprise a casing disposed about the linkage, and a bearing in the casing for supporting a shaft on which the pinions are mounted.

In another aspect of the invention, the linkage comprises a screw shaft having a first threaded flight having a first pitch and a second threaded flight having a second pitch. A first traveler is engaged by the first threaded flight and in linear communication with the outer sheath. A second traveler is engaged by the second threaded flight and in linear communication with the pusher. The linkage further comprises means for turning the screw shaft. Where the first threaded flight has a first pitch (P1) corresponding to a number of turns per unit length and a second threaded flight having a second corresponding pitch (P2), the ratio of the first pitch to the second pitch (P1/P2) is approximately equal to the foreshortening ratio.

In some embodiments of the invention, the delivery system may further comprise a clutch mechanism for preventing simultaneous movement of the outer sheath and the pusher when engaged, including, optionally, indicia for indicating to a user of the delivery system when to engage or disengage the clutch mechanism. Other embodiments may comprise a lag mechanism for preventing simultaneous movement of the outer sheath and the pusher over a predetermined travel distance of the outer sheath.

Another aspect of the invention comprises a manipulator for a delivery system comprising an outer sheath that radially surrounds a compressed endoluminal device and a pusher positioned at one end of the endoluminal device. The manipulator comprises a first interface for connecting the manipulator in communication with the outer sheath, a second interface for connecting the manipulator in communication with the pusher, a linkage coupled to the first and second interface for coordinating movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction, and means for actuating the linkage. The manipulator may be detachable from the delivery system and reusable, in which case the manipulator comprises a material of construction, such as but not limited to stainless steel, adapted to withstand prolonged exposure to high temperatures effective to sterilize the manipulator without being damaged.

Still another aspect of the invention comprises a method for endoluminal deployment of an endoluminal device. The method comprises first introducing a delivery system from a first location outside a lumen to a second location inside the lumen. The delivery system comprises an endoluminal device in a compressed configuration, an outer sheath that radially surrounds the endoluminal device in the compressed configuration, a pusher positioned at a first end of the endoluminal device, and a linkage in communication with the pusher and the outer sheath for coordinating simultaneous movement of the outer sheath and the pusher. The second location is a location at which a second end of the endoluminal device is axially aligned with a desired target location on the lumen. The method next comprises deploying the endoluminal device so that the second end is implanted in the desired target location. This is effected by manipulating the linkage to move the outer sheath in a first direction while simultaneously moving the pusher in a second direction opposite the first direction.

Where the first location outside the lumen is a proximal location, the second location is a distal location, the first direction is a proximal direction and the second direction is a distal direction, the step of deploying the endoluminal device may comprise proximally retracting a handle in communication with the outer sheath or distally advancing a slide in communication with the pusher. Where the linkage comprises a rack and pinion system, the step of deploying the endoluminal device may comprise manipulating a member that is rotationally interlocked with the pinion. Where the stent delivery system comprises a first component comprising the outer sheath and the pusher and a second, detachable component comprising the linkage, the method may comprise attaching the first component to the second component before introducing the delivery system into the lumen. Similarly, the method may comprise the steps of detaching the second component from the first component after deployment of the endoluminal device and then sterilizing the second component so that it can be reused.

In an embodiment wherein the endoluminal device has a foreshortening ratio greater than zero in the first portion and the foreshortening ratio equal to zero in a second portion and the system further comprises a clutch mechanism for preventing simultaneous movement of the outer sheath and the pusher when engaged, the method comprises deploying the first portion of the endoluminal device with the clutch engaged so that there is not simultaneous movement of the outer sheath and the pusher, and deploying the second portion of the endoluminal device with the clutch released so that there is simultaneous movement of the outer sheath and the pusher. In an embodiment wherein the endoluminal device has a foreshortening ratio greater than zero in a first portion and a foreshortening ratio equal to zero in a second portion and the system comprises a lag mechanism for preventing simultaneous movement of the outer sheath and the pusher over a predetermined travel distance of the outer sheath, the method comprises deploying the first portion of the endoluminal device without simultaneous movement of the outer sheath and the pusher and deploying the second portion of the endoluminal device with simultaneous movement of the outer sheath and the pusher.

It is to be understood that both the foregoing general description and the following detailed description are exemplary, but are not restrictive, of the invention.

The invention is best understood from the following detailed description when read in connection with the accompanying drawing. It is emphasized that, according to common practice, the various features of the drawing are not to scale. On the contrary, the dimensions of the various features are arbitrarily expanded or reduced for clarity. Included in the drawing are the following figures:

FIG. 1A depicts a partial longitudinal section of an exemplary delivery system of the prior art for deploying a foreshortening-prone stent of the prior art;

FIG. 1B depicts the delivery system of FIG. 1A in a partially deployed configuration;

FIG. 1C depicts the delivery system of FIG. 1A after the stent has been fully deployed;

FIG. 2A depicts a partial longitudinal section of an exemplary delivery system of the present invention;

FIG. 2B depicts the delivery system of FIG. 2A in a partially deployed configuration;

FIG. 2C depicts the delivery system of FIG. 2A after the stent has been fully deployed;

FIG. 3A is a proximal view of an exemplary embodiment wherein the pinions shown in FIG. 2A have a dial rotationally interlocked to them;

FIG. 3B is a proximal view of an exemplary embodiment wherein the pinions shown in FIG. 2A have a crank rotationally interlocked to them;

FIG. 4 is a perspective view of an exemplary linkage comprising a screw drive and a pair of travelers;

FIG. 5 is a cross-sectional view of a portion of an exemplary delivery system having a clutch mechanism; and

FIG. 6 depicts a partial longitudinal section of an exemplary delivery system of the present invention having a lag mechanism.

The invention will next be illustrated with reference to the figures wherein similar numbers indicate the same elements in all figures. Such figures are intended to be illustrative rather than limiting and are included herewith to facilitate the explanation of the apparatus of the present invention.

Referring now to FIGS. 2A–2C, there is shown an exemplary delivery system 30 of this invention in various stages of deployment. Delivery system 30 comprises stent 10 in its compressed configuration, outer sheath 28 that radially surrounds the stent, pusher 27 positioned at the proximal end 11 of the stent, and a linkage 32 in communication with both the pusher and the outer sheath. Linkage 32 coordinates proximal retraction of outer sheath 28 with simultaneous distal advancement of pusher 27. Also shown in FIGS. 2A–2C is inner member 26, attached to an interface 42 at its proximal end and extending axially through stent 10 and pusher 27 to a connection with tip 24 at its distal end.

As shown in FIGS. 2A–2C, linkage 32 comprises a rack and pinion system having intermeshing teeth 33. The rack and pinion system comprises a first rack 34 in linear communication with outer sheath 28, a second rack 36 in linear communication with the pusher 27, and a pair of rotationally-interlocked pinions 38 and 39 supported between the first rack and the second rack. Pinion 38 has a first diameter D1 and is adapted to interface with the rack 34. Pinion 39 has a second diameter D2 that is relatively smaller than first diameter D1, and is adapted to interface with the rack 36. It should be noted that the rack and pinion system shown in FIGS. 2A–2C is merely one exemplary embodiment, and other rack and pinion systems may also be devised to provide a similar effect. For example, the pinions may have a common diameter and may be mounted on separate shafts, with a gear mechanism, belt and sheave, or chain and sprocket mechanism provided between the pinions to provide the differential motion between the racks.

The term “linkage” is used herein to denote any mechanism that links together the motion of outer sheath 28 and pusher 27. Thus, although a rack and pinion system is shown herein, other types of linkages may be provided within the scope of this invention, including but not limited to those discussed specifically herein below.

By “in linear communication with” it is meant that the each rack 34 and 36 moves linearly in concert with the sheath 28 or the pusher 27, respectively, such that movement of the respective rack in one linear direction will move the sheath or pusher in the same linear direction. Although rack 34 is shown with a direct connection to sheath 28 at interface 40 and rack 36 is shown with a direct connection to pusher 27 at interface 42 in FIGS. 2A–2C, the respective racks may be indirectly connected to the sheath or pusher through one or more intermediate elements. Thus, the terminology “in linear communication with” has been chosen to reflect that no direct connection between the racks and the sheath or pusher is required. Preferably, interfaces 40 and 42 are configured to be attached to sheath 28 and pusher 27 at a location such that the interfaces and linkage 32 can remain outside of the body lumen during deployment.

By “rotationally interlocked” it is meant that pinions 38 and 39 are connected in such a way that they rotate the same degree of revolution in the same direction simultaneously. For example, as shown in FIGS. 2A–2C, the pinions are mounted on the same shaft 44 in a way that one full revolution of the shaft will coincide with one full revolution of both pinions 38 and 39. The pinions may be bonded together or may be machined from a single integral piece, or the shaft may be keyed and each pinion may be independent from one other but keyed similarly to the shaft. In an alternative embodiment, the pinions may be mounted on separate shafts, with other methods of rotationally interlocking them, such as a gear train or drive belt or chain that provides for one full revolution of one pinion to translate to one full revolution of the other pinion. It should be understood that any number of mechanisms may be devised for providing rotationally interlocking pinions, all of which are within the scope of the present invention.

The simultaneous retraction of outer sheath 28 and advancement of pusher 27 may be accomplished by any of a number of methods and structures, some examples of which are shown in FIG. 2B with dashed lines, and in FIGS. 3A and 3B. As shown in FIG. 2B, a handle 122 may be attached to rack 34 or otherwise in linear communication with outer sheath 28 so that proximal retraction of the handle actuates the linkage. Similarly, a slide 46 may be attached to rack 36 or otherwise in linear communication with pusher 27, so that distal advancement of the slide will actuate the linkage. Although both handle 122 and slide 46 are both shown in FIG. 2B, embodiments of the invention may have none, both, or only one of these means. A member in rotational communication with pinions 38 and 39, such as dial 48 shown in FIG. 3A or crank 49 shown in FIG. 3B, may also or instead be used for directly rotating at least one of the pinions, thereby actuating the linkage. Suitable members are not limited to dial 48 and crank 49, but may include any means known in the art for actuating a pinion, such as for example but not limited to, a pistol grip mechanism such as disclosed in U.S. Pat. No. 5,968,052 to Sullivan and DeVries, incorporated herein by reference. By “in rotational communication” with pinions 38 and 39 it is meant that rotation of the member also causes pinions 38 and 39 to rotate. A full revolution of the first member may translate to less than, equal to, or greater than a full revolution of a second member in rotational communication with the first member.

Accordingly, a dial or crank may be rotationally interlocked to the pinions as shown in FIGS. 3A and 3B so that one revolution of the dial or crank corresponds to one rotation of the pinions, or the dial or crank may include a transmission such as a gearing mechanism that provides mechanical advantage, such as for example a dial geared to the pinion such that a full rotation of the dial results in less than a full rotation of the pinion. Conversely, if it is desired to reduce the amount of travel of the dial relative to the pinion, the transmission may translate less than a full rotation of the dial to a full rotation of the pinion. The diameter of the dial or diameter of rotation of the crank may also be used to provide mechanical advantage or to reduce travel. The “diameter of rotation” for a crank is twice the radial distance r1 of the crank from the centerpoint of the shaft rotated by the crank, as shown in FIG. 3B. For example, dial 48 may have a diameter D3 or crank 49 may have a diameter of rotation 2r1 greater than diameter D1 of the largest pinion, as shown in FIGS. 3A and 3B, respectively. Where the dial is rotationally interlocked with the pinions, the larger diameter provides mechanical advantage. Conversely, a dial with a diameter smaller than diameter D1 enables the user to retract outer sheath 28 a given linear distance greater than ΦπD3 by moving the dial a circumferential distance ΦπD3, where Φ is the percentage of a full revolution traveled by dial 48.

Referring now to FIG. 4, there is shown an alternative linkage embodiment 50 of the present invention comprising a screw shaft 52 having a first threaded flight 54 for engaging a first traveler 56, and a second threaded flight 58 for engaging a second traveler 60. A handle 62 may be used for manipulating the linkage. As shown in FIG. 4, when handle 62 is turned clockwise (as viewed from the handle end of the screw) in the direction of arrow Z, flight 54 moves traveler 56 in the direction of arrow X, whereas flight 58 moves traveler 60 in the direction opposite arrow X. Furthermore, flight 54 has a wider pitch than flight 58, so that traveler 56 moves a greater distance that traveler 60. Although illustrated herein with a single handle 62 that may be turned by the user, it should be recognized that any means for rotating screw shaft 52 may be provided. For example, screw shaft 52 may be engaged by a transmission for translating linear motion in any plane or rotational motion about any axis to rotational motion of screw shaft 52, with or without mechanical advantage, including engagement by, for example, the pistol grip mechanism referred to herein.

For any type of linkage used in the present invention, a preferred embodiment is for the linkage to coordinate a first distance (d1) of proximal retraction of the outer sheath to a second distance (d2) of distal advancement of the pusher. As shown in FIG. 2C, outer sheath 28 needs to retract a distance d1 equal to the expanded length (LE) of stent 10. By contrast, pusher 27 needs only to travel a distance d2 equal to the compressed length (LC) minus the expanded length (LE). Therefore the ratio of the second distance to the first distance

( d 2 d 1 )
is equal to the foreshortening ratio.

For the rack and pinion system shown in FIGS. 2A–2C, the circumferential travel ΦπD1 of pinion 38 translates to distance d1 and the circumferential travel ΦπD2 of pinion 39 translates to distance d2 for an appropriate value of Φ. Accordingly, the gear ratio D2/D1 is also preferably equal to the foreshortening ratio. Similarly, for the screw drive embodiment 50 shown in FIG. 4, where P1 equals the pitch of flight 54 represented as a number of turns per unit length and P2 equals the corresponding pitch of flight 58. Thus, the distance d1=n/P1, where n is the number of full turns of handle 62, and d2=n/P2. Accordingly, the ratio of P1/P2 is equal to the foreshortening ratio d2/d1.

The linkages of the present invention may comprise a separable component from the component comprising the outer sheath and pusher, or an inseparable component. As such, the linkage component may be described as a “manipulator” for a delivery system because it is used to manipulate the delivery system during deployment. The manipulator may comprise other components in addition to the linkage, but at a minimum, referring to the embodiment shown in FIGS. 2A–2C, the manipulator comprises linkage 32, interface 40 for connecting the manipulator in communication with the outer sheath 28, interface 42 for connecting the manipulator in communication with pusher 27, and means for actuating the linkage. The means for actuating the linkage may be any means known in the art, particularly those discussed above such as handle 122 or slide 46 as shown in FIG. 2B, or dial 48 or crank 49 as shown in FIGS. 3A and 3B, respectively. Finally, although a rack and pinion type linkage is shown herein by way of example, any type of linkage known in the art may be used, such as a belt and pulley system.

Where the manipulator is detachable from the rest of the delivery system, it may also be reusable. In such embodiments, it is desirable for the manipulator to comprise a material of construction adapted to withstand exposure to a predetermined temperature for a endoluminal device, however, a toothless portion of the rack may be most advantageous. The toothless portion 602 may be at the proximal end of the rack, a distal end of the rack, or in the middle of the rack, and the rack may have more than one toothless portion. The structural features of the lag system are preferably tailored to match the features of the endoluminal device to be deployed.

One advantage of a lag system over a clutch system, is that the rack can be designed so that the practitioner merely pulls proximally on rack 634, without having to be concerned about timing the engagement and release of the clutch. For clutch systems, however, the rack may be provided with indicia visible to the practitioner at the proximal end to indicate when to pull in the clutch and when to release. For example, in the clutch system, as rack 34 is retracted, a portion proximally protruding from the proximal end of the casing may comprise one color to indicate engaging the clutch and another color to indicate releasing the clutch. Thus, as the rack is retracted, the color of the rack emerging from the casing may indicate to the practitioner whether to engage or release the clutch. Similarly, dial 48 as shown in FIG. 3A may have color-coded portions or other indicia to indicate when to release and when to engage the clutch. In a crank system, the practitioner may be provided with instructions as to when to engage and disengage the clutch based on how many degrees the crank is turned. It should be recognized that for lag systems to work with respect to the dial or crank embodiments of FIG. 3A or 3B, respectively, the pinions are typically the members with toothless portions. A lag system for the screw shaft embodiment shown in FIG. 4 can be approximated by having a very close pitch for a predetermined portion of one of the flights.

Although illustrated and described herein with reference to certain specific embodiments, the present invention is nevertheless not intended to be limited to the details shown. Rather, various modifications may be made in the details within the scope and range of equivalents of the claims and without departing from the spirit of the invention. predetermined amount of time effective to sterilize the manipulator without the manipulator being damaged. For example, hospitals may heat items to be sterilized in an autoclave set to an effective temperature for an effective amount of time known to sterilize the items. The combination of time and temperature is well-known in the art, as are materials of construction suitable for items that undergo such sterilization procedures. Stainless steel is a typical material used, but the invention is not limited to any particular material, and therefore any suitable material known in the art may be used.

Manipulators not intended for reuse may comprise materials less expensive than stainless steel, as are known in the art, including materials such as plastics that can readily be incinerated in hospital incinerators. Although non-reusable manipulators may still be detachable if desired, for example for shipping or packaging considerations, manipulators that are integral to the rest of the stent delivery system may offer an advantageous reduction in assembly time and correspondingly reduced potential for assembly errors or failures at the interfaces.

The delivery system of the present invention lends provides a unique method for delivery of an endoluminal device. The method comprises the steps of first introducing the delivery system into a body lumen and aligning the first end of the endoluminal device to be deployed, which in FIG. 2A is the distal end 12, with a desired target location 29 on the lumen or a previously deployed endoluminal device (not shown). The method then comprises deploying the endoluminal device with the second end in the desired target location by manipulating the linkage to move the outer sheath in a first direction while simultaneously moving the pusher in a second direction opposite the first direction. Although as shown in FIGS. 2A–2C, the stent is being deployed from a proximal location outside the lumen into a distal location, and the outer sheath is proximally retracted while the pusher is distally advanced, the method is not limited to any particular direction of deployment. The step of manipulating the linkage may be initiated by retracting handle 122 or advancing slide 46 as shown in FIG. 2B, by turning dial 48 or crank 49 as shown in FIGS. 3A and 3B, respectively, or by any other means. Where the linkage provides mechanical advantage, the linkage may be manipulated using less force than the sum of forces required to move the outer sheath and the pusher without the linkage.

Although the method may be useful for the implantation of any endoluminal device, the method is particularly useful for an endoluminal device having a foreshortening ratio greater than 0. In such case, the method implants end 12 of the endoluminal device precisely at the desired target location 29, unlike methods of the prior art where the foreshortening of the endoluminal device causes the distal end to be implanted proximally of the desired target location. As discussed herein, the preferred method coordinating a first distance of proximal retraction (d1) of outer sheath 28 with a second distance (d2) of distal advancement of pusher 27 wherein the second distance divided by the first distance

( d 2 d 1 )
is approximately equal to the foreshortening ratio of the endoluminal device. It should be appreciated that although the illustrations and accompanying text herein refer to a stent, the introducer of the present invention may be used for deploying any type of endoluminal device, including but not limited to stents, grafts, prostheses, vena cava filters, and the like.

Where the component comprising the linkage is detachable from at least the outer sheath and the pusher, the method further comprises attaching the first component to the sheath and pusher component prior to introducing the stent delivery system into the lumen. Wherein the linkage component is reusable, the method further comprises the steps of detaching the second component from the first component after deployment of the stent and then sterilizing the linkage component.

Some stent or filter embodiments may comprise a combination of foreshortening and non-foreshortening sections. Thus, for example, deployment of one longitudinal section of the stent may benefit from the linkage between pusher and outer sheath as discussed above, whereas deployment of an adjacent longitudinal section may not benefit from such a linkage, and may actually suffer from use of such system. Thus, for this and other reasons, it may be desirable to provide a clutch mechanism that prevents engagement of the linkage when actuated. In other cases, the system may have structure features tailored to prevent advancement of the pusher simultaneously with retraction of the outer sheath at certain points during deployment. Exemplary such systems are described below, but the invention is not limited to any particular embodiment of these functionalities.

Referring now to FIG. 5, there is shown a cross-sectional view of a portion of an exemplary delivery system 500 having a clutch mechanism. System 500 comprises a two part casing 502, comprising snap-together halves 502a and 502b. Ball bearing 504 having balls 503 is attached to half 502a, and shaft 44 is supported by the ball bearing. Although illustrated with a ball bearing, any type of bearing may be used. Spring 506 biases pinions 38 and 39 into a position in engagement with racks 34 and 36, respectively. Clutch button 508 is biased by spring 510 outwardly from casing half 502b, with stops 511 keeping the button from being fully ejected by the spring from the casing. Stops 511 may be set screws, a molded portion of the button, or any member functional to act as a stop but still provide for assembly of button 508 in the casing 502. Depressing button 508 inwardly in the direction of arrow B causes the inward-most portion of prongs 509 of button 508 to engage pinion 39 and push both pinions out of engagement with the racks for as long as the clutch button is depressed. Releasing button 508 allows spring 506 to force the pinions back into engagement with the racks. Casing half 502b has an indentation 514 concentric with button 508 so that button 508 can be depressed almost flush with casing 502. Button 508 may be circular, square, or any shape desired. Prongs 509 may comprise prongs with circular or square cross-sections, circumferential portions of a cylinder, or any shape known in the art.

Casing 502 is also shown with support brackets 512 for slidably supporting the racks. By “slidably supporting” it is meant that the brackets do not interfere with the distal and proximal sliding of the racks. It should be understood that even embodiments without a clutch mechanism may have a casing that supports the pinion shaft and that has brackets to support the travel of the racks. Such a casing may be a complete enclosure as shown in FIG. 5, or may provide only enough structure to support the racks and/or pinions. The invention is not limited to the particular features of the casing, nor to embodiments having casings. It should be understood, however, that typically some structural element is present to support the pinions in the desired position relative to the racks, and such supportive features have been omitted from FIGS. 2A–4 for simplicity of illustration. Such supportive features may comprise any structural elements known in the art.

FIG. 6 illustrates an exemplary lag system 600. Lag system 600 comprises features similar to those found in FIGS. 2A–2C, except that a longitudinal portion 602 of rack 634 is without teeth 33. Thus, when rack 634 attached to outer sheath 28 is retracted over portion 602, there is nothing to engage pinion 38, and thus neither pinion 39 or 38 rotate until the proximal-most tooth 33a of rack 634 engages pinion 38. Thus, distal advancement of pusher 27 can be said to “lag” the proximal retraction of sheath 28. Toothless portion 602 may be tailored to have a length sufficient to deploy the corresponding non-foreshortening portion of the endoluminal device to be deployed. The toothless portion may also be on one of both of the pinions, if the conditions favor such an arrangement. Where the pinions experience more than a single revolution over the course of fully deploying the

Weldon, James, Yampolsky, Ilya

Patent Priority Assignee Title
10010438, Oct 06 2008 FLEXIBLE STENTING SOLUTIONS, INC. Reconstrainable stent delivery system
10022255, Apr 11 2016 IDEV TECHNOLOGIES, INC Stent delivery system having anisotropic sheath
10064748, Jul 22 2013 Terumo Kabushiki Kaisha Stent delivery system
10092427, Nov 04 2009 CONFLUENT MEDICAL TECHNOLOGIES, INC Alternating circumferential bridge stent design and methods for use thereof
10105248, Jun 30 2008 Bolton Medical, Inc. Abdominal aortic aneurysms: systems and methods of use
10105250, Sep 03 2003 Bolton Medical, Inc. Dual capture device for stent graft delivery system and method for capturing a stent graft
10117765, Jun 14 2011 W L GORE & ASSOCIATES, INC Apposition fiber for use in endoluminal deployment of expandable implants
10149778, Nov 04 2014 ABBOTT CARDIOVASCULAR SYSTEMS INC Methods and systems for delivering an implant using a planetary gear actuation assembly
10154920, Nov 04 2014 ABBOTT CARDIOVASCULAR SYSTEMS INC Methods and systems for delivering an implant using a planetary gear actuation assembly
10182930, Sep 03 2003 Bolton Medical, Inc. Aligning device for stent graft delivery system
10188496, May 02 2006 C R BARD, INC Vena cava filter formed from a sheet
10195065, Nov 04 2014 ABBOTT CARDIOVASCULAR SYSTEMS INC Methods and systems for delivering an implant using a planetary gear actuation assembly
10206800, Jul 11 2007 C.R. Bard, Inc. Device for catheter sheath retraction
10213291, Sep 03 2003 Bolto Medical, Inc. Vascular repair devices
10238515, Jun 21 2011 Cook Medical Technologies LLC Control system for a stent delivery system
10245167, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
10271980, Nov 04 2014 ABBOTT CARDIOVASCULAR SYSTEMS INC Methods and systems for delivering an implant using a planetary gear actuation assembly
10285833, Aug 10 2012 Lombard Medical Limited Stent delivery systems and associated methods
10299951, Apr 12 2012 Bolton Medical, Inc. Vascular prosthetic delivery device and method of use
10307275, Jun 30 2008 Bolton Medical, Inc. Abdominal aortic aneurysms: systems and methods of use
10307276, Jul 18 2016 Cook Medical Technologies LLC Pistol stent delivery device and method of operating same
10307278, Oct 29 2012 Cook Medical Technologies LLC Low profile stepped delivery system
10390929, Sep 03 2003 Bolton Medical, Inc. Methods of self-aligning stent grafts
10433994, Nov 04 2014 ABBOTT CARDIOVASCULAR SYSTEMS INC Methods and systems for delivering an implant
10441449, May 30 2018 VESPER MEDICAL, INC Rotary handle stent delivery system and method
10449073, Sep 18 2018 VESPER MEDICAL, INC Rotary handle stent delivery system and method
10456254, Apr 09 2010 Medtronic, Inc. Transcatheter prosthetic heart valve delivery system with recapturing feature and method
10470902, Oct 22 2006 IDev Technologies, Inc. Secured strand end devices
10492898, Aug 09 2005 C.R. Bard, Inc. Embolus blood clot filter and delivery system
10512758, Jul 01 2008 Endologix LLC Catheter system and methods of using same
10555826, Mar 15 2013 Bolton Medical, Inc. Hemostasis valve and delivery systems
10610392, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
10639181, Nov 04 2014 ABBOTT CARDIOVASCULAR SYSTEMS INC Methods and systems for delivering an implant
10646365, Sep 03 2003 Bolton Medical, Inc. Delivery system and method for self-centering a proximal end of a stent graft
10660771, May 29 2010 Intact Vacsular, Inc. Deployment device for placement of multiple intraluminal surgical staples
10660775, Mar 01 2011 Endologix LLC Catheter system and methods of using same
10695202, Jan 30 2008 Boston Scientific Scimed, Inc. Medical systems and related method
10729527, May 12 2005 C.R. Bard, Inc. Removable embolus blood clot filter
10736762, Sep 18 2018 VESPER MEDICAL, INC Rotary handle stent delivery system and method
10765543, Apr 04 2014 W. L. Gore & Associates, Inc. Deployment handle for a medical device deployment system
10779968, May 29 2010 Intact Vascular, Inc. Endoluminal device and method
10779969, Jun 03 2011 Intact Vascular, Inc. Endovascular implant and deployment devices
10779971, Jun 03 2011 Intact Vascular, Inc. Endovascular implant
10799374, Dec 12 2007 Intact Vascular, Inc. Device and method for tacking plaque to blood vessel wall
10813738, May 12 2005 C.R. Bard, Inc. Tubular filter
10835395, Dec 12 2007 Intact Vascular, Inc. Method of treating atherosclerotic occlusive disease
10842608, Nov 18 2005 C.R. Bard, Inc. Vena cava filter with filament
10864097, Jun 30 2008 Bolton Medical, Inc. Abdominal aortic aneurysms: systems and methods of use
10888443, Jun 11 2009 Intact Vascular, Inc. Device for holding plaque to blood vessel wall
10898356, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
10898357, Mar 13 2009 Bolton Medical, Inc. System for deploying an endoluminal prosthesis at a surgical site
10898360, Oct 29 2012 Cook Medical Technologies LLC Low profile stepped delivery system
10918509, Sep 03 2003 Bolton Medical, Inc. Aligning device for stent graft delivery system
10945827, Sep 03 2003 Bolton Medical, Inc. Vascular repair devices
10952879, Oct 21 2010 C. R. Bard, Inc. System to deliver a bodily implant
10966812, Oct 31 2017 Epic Medical Concepts & Innovations, Inc. Embolic protection system
10980626, May 02 2006 C. R. Bard, Inc. Vena cava filter formed from a sheet
10987239, May 30 2018 Vesper Medical, Inc. Rotary handle stent delivery system and method
10993803, Apr 01 2011 W. L. Gore & Associates, Inc. Elastomeric leaflet for prosthetic heart valves
10993822, Aug 07 2006 C. R. Bard, Inc. Hand-held actuator device
10993824, Jan 01 2016 INTACT VASCULAR, INC Delivery device and method of delivery
10993825, Sep 18 2018 Vesper Medical, Inc. Rotary handle stent delivery system and method
11020255, Jun 24 2010 CARDINAL HEALTH SWITZERLAND 515 GMBH Apparatus for and method of pulling a tensile member from a medical device
11026821, Jul 11 2007 C. R. Bard, Inc. Device for catheter sheath retraction
11026822, Jan 13 2006 C. R. Bard, Inc. Stent delivery system
11103339, Aug 04 2004 C. R. Bard, Inc. Non-entangling vena cava filter
11103341, Sep 03 2003 Bolton Medical, Inc. Stent graft delivery device
11109990, Jun 11 2008 C. R. Bard, Inc. Catheter delivery device
11123174, Mar 13 2012 W. L. Gore & Associates, Inc. External steerable fiber for use in endoluminal deployment of expandable devices
11129622, May 14 2015 W L GORE & ASSOCIATES, INC Devices and methods for occlusion of an atrial appendage
11129737, Jun 30 2015 Endologix LLC Locking assembly for coupling guidewire to delivery system
11141257, Jun 05 2006 C. R. Bard, Inc. Embolus blood clot filter utilizable with a single delivery system or a single retrieval system in one of a femoral or jugular access
11160676, Sep 18 2018 Vesper Medical, Inc. Rotary handle stent delivery system and method
11173023, Oct 16 2017 W L GORE & ASSOCIATES, INC Medical devices and anchors therefor
11219541, May 21 2020 VESPER MEDICAL, INC Wheel lock for thumbwheel actuated device
11234848, May 30 2018 Vesper Medical, Inc. Rotary handle stent delivery system and method
11259945, Sep 03 2003 Bolton Medical, Inc. Dual capture device for stent graft delivery system and method for capturing a stent graft
11291573, Mar 15 2013 Cook Medical Technologies LLC Delivery system for a self-expanding medical device
11304836, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
11324615, Nov 14 2011 W. L. Gore & Associates, Inc. External steerable fiber for use in endoluminal deployment of expandable devices
11351049, Apr 12 2012 BOLTON MEDICAL, INC Vascular prosthetic delivery device and method of use
11382779, Jun 30 2008 Bolton Medical, Inc. Abdominal aortic aneurysms: systems and methods of use
11382781, Nov 14 2011 W. L. Gore & Associates, Inc. External steerable fiber for use in endoluminal deployment of expandable devices
11413173, Sep 03 2003 Bolton Medical, Inc. Stent graft with a longitudinal support member
11419744, Sep 18 2018 Vesper Medical, Inc. Rotary sheath withdrawal system and method
11457925, Sep 16 2011 W. L. Gore & Associates, Inc. Occlusive devices
11491037, May 21 2020 Vesper Medical, Inc. Wheel lock for thumbwheel actuated device
11517415, Aug 09 2005 C.R. Bard, Inc. Embolus blood clot filter and delivery system
11554006, May 12 2005 C. R. Bard Inc. Removable embolus blood clot filter
11596537, Sep 03 2003 Bolton Medical, Inc. Delivery system and method for self-centering a proximal end of a stent graft
11660218, Jul 26 2017 Intact Vascular, Inc. Delivery device and method of delivery
11666438, Apr 09 2010 Medtronic, Inc. Transcatheter prosthetic heart valve delivery system with recapturing feature and method
11666467, Mar 15 2013 Bolton Medical, Inc. Hemostasis valve and delivery systems
11730583, May 12 2005 C.R. Band. Inc. Tubular filter
11766344, Apr 04 2014 W. L. Gore & Associates, Inc. Deployment handle for a medical device deployment system
11813158, Sep 03 2003 Bolton Medical, Inc. Stent graft delivery device
11826052, May 14 2015 W. L. Gore & Associates, Inc. Devices and methods for occlusion of an atrial appendage
11911258, Jun 26 2013 W L GORE & ASSOCIATES, INC Space filling devices
11931276, Jun 11 2008 C. R. Bard, Inc. Catheter delivery device
11998469, Apr 12 2012 Bolton Medical, Inc. Vascular prosthetic delivery device and method of use
12076227, Mar 13 2012 W. L. Gore & Associates, Inc. External steerable fiber for use in endoluminal deployment of expandable devices
12115057, May 12 2005 C.R. Bard, Inc. Tubular filter
12115091, Sep 18 2018 Vesper Medical, Inc. Rotary sheath withdrawal system and method
12121460, May 27 2010 IDev Technologies, Inc. Stent delivery system with pusher assembly
7278998, Jan 24 2003 CID S P A Actuating device for catheters
7803180, Apr 04 2005 FLEXIBLE STENTING SOLUTIONS, INC Flexible stent
7879081, May 03 2002 LifeShield Sciences LLC Hypotube endoluminal device and method
7935141, Aug 17 2005 C R BARD, INC Variable speed stent delivery system
7967838, May 12 2005 C. R. Bard, Inc. Removable embolus blood clot filter
7993384, Sep 12 2003 ABBOTT CARDIOVASCULAR SYSTEMS INC Delivery system for medical devices
8025692, Oct 02 2001 ANGIOMED GMBH & CO MEDIZINTECHNIK KG Stent delivery system
8062344, Apr 30 2001 ANGIOMED GMBH & CO. MEDIZINTECHNIK KG Variable speed self-expanding stent delivery system and luer locking connector
8075606, Jul 06 2001 ANGIOMED GMBH & CO MEDIZINTECHNIK KG Delivery system having a rapid pusher assembly for self-expanding stent, and stent exchange configuration
8092468, Dec 26 2007 Cook Medical Technologies LLC Deployment handle for an implant deployment device
8197533, May 22 2002 LifeShield Sciences LLC Stent with segmented graft
8211119, Jun 14 2004 Cilag GmbH International Endoscopic surgical instrument having a rotational actuator
8372109, Aug 04 2004 C. R. Bard, Inc. Non-entangling vena cava filter
8398672, Nov 12 2003 CONFLUENT MEDICAL TECHNOLOGIES, INC Method for anchoring a medical device
8409239, Nov 12 2003 CONFLUENT MEDICAL TECHNOLOGIES, INC Medical device anchor and delivery system
8430903, Aug 09 2005 C. R. Bard, Inc. Embolus blood clot filter and delivery system
8439962, May 28 2009 ABOUFARES, ALI; MULUMUDI, MAHESH Endoprothesis stent delivery system and method of using the same
8475515, Jan 15 2003 Angiomed GmbH & Co., Medizinitechnik KG Trans-luminal surgical device
8500789, Jul 11 2007 C R BARD, INC Device for catheter sheath retraction
8500794, Aug 02 2007 FLEXIBLE STENTING SOLUTIONS, INC. Flexible stent
8568467, Jan 15 2003 ANGIOMED GMBH & CO MEDIZINITECHNIK KG Trans-luminal surgical device
8574261, May 12 2005 C. R. Bard, Inc. Removable embolus blood clot filter
8591564, May 03 2002 LifeShield Sciences LLC Hypotube endoluminal device and method
8613754, May 12 2005 C R BARD, INC Tubular filter
8628556, Aug 04 2004 C. R. Bard, Inc. Non-entangling vena cava filter
8690906, Sep 25 1998 C.R. Bard, Inc. Removeable embolus blood clot filter and filter delivery unit
8808346, Jan 13 2006 C R BARD, INC Stent delivery system
8808350, Mar 01 2011 Endologix LLC Catheter system and methods of using same
8858610, Jan 19 2009 W L GORE & ASSOCIATES, INC Forced deployment sequence
8858613, Sep 20 2010 Lombard Medical Limited Stent graft delivery systems and associated methods
8876807, Jan 19 2009 W L GORE & ASSOCIATES, INC Forced deployment sequence
8876881, Oct 22 2006 IDEV TECHNOLOGIES, INC Devices for stent advancement
8926684, May 28 2009 Endoprosthesis stent delivery system and method of using the same
8998970, Apr 12 2012 BOLTON MEDICAL, INC Vascular prosthetic delivery device and method of use
8998980, Apr 09 2010 Medtronic, Inc Transcatheter prosthetic heart valve delivery system with recapturing feature and method
9017367, May 12 2005 C. R. Bard, Inc. Tubular filter
9023095, May 27 2010 IDEV TECHNOLOGIES, INC Stent delivery system with pusher assembly
9050067, Sep 26 2011 Cook Medical Technologies, LLC Percutaneous nephrostomy plug delivery device
9078779, Aug 07 2006 C R BARD, INC Hand-held actuator device
9095465, Dec 20 2012 Sanford Health Stent deployment device and methods for use
9101506, Mar 13 2009 BOLTON MEDICAL, INC System and method for deploying an endoluminal prosthesis at a surgical site
9113954, Oct 29 2004 DEPUY SYNTHES PRODUCTS, INC Coordinate instrument set
9131999, Nov 18 2005 C R BARD, INC ; C R BARD INC Vena cava filter with filament
9138335, Jul 31 2006 Edwards Lifesciences CardiAQ LLC Surgical implant devices and methods for their manufacture and use
9144484, Aug 04 2004 C. R. Bard, Inc. Non-entangling vena cava filter
9144493, Nov 14 2012 Medtronic Vascular Galway Limited Valve prosthesis deployment assembly and method
9149374, Oct 22 2006 IDEV TECHNOLOGIES, INC Methods for manufacturing secured strand end devices
9149376, Oct 06 2008 FLEXIBLE STENTING SOLUTIONS, INC Reconstrainable stent delivery system
9149379, Jul 16 2007 Cook Medical Technologies LLC Delivery device
9173755, Sep 03 2003 Bolton Medical, Inc. Vascular repair devices
9192500, Jan 29 2015 INTACT VASCULAR, INC Delivery device and method of delivery
9204956, Feb 20 2002 C R BARD, INC IVC filter with translating hooks
9220617, Sep 03 2003 Bolton Medical, Inc. Dual capture device for stent graft delivery system and method for capturing a stent graft
9283065, Nov 12 2003 CONFLUENT MEDICAL TECHNOLOGIES, INC Medical device anchor and delivery system
9308108, Mar 13 2013 Cook Medical Technologies LLC Controlled release and recapture stent-deployment device
9314356, Jan 29 2010 Cook Medical Technologies LLC Mechanically expandable delivery and dilation systems
9320631, Sep 03 2003 BOLTON MEDICAL, INC Aligning device for stent graft delivery system
9320632, Jan 29 2015 INTACT VASCULAR, INC Delivery device and method of delivery
9326842, Jun 05 2006 C R BARD, INC Embolus blood clot filter utilizable with a single delivery system or a single retrieval system in one of a femoral or jugular access
9326872, Aug 17 2010 W L GORE & ASSOCIATES, INC Forced deployment sequence handle assembly with independent actuating mechanism
9333104, Sep 03 2003 Bolton Medical, Inc. Delivery systems for delivering and deploying stent grafts
9345603, Jan 29 2015 INTACT VASCULAR, INC Delivery device and method of delivery
9351821, Sep 25 1998 Removable embolus blood clot filter and filter delivery unit
9364314, Jun 30 2008 BOLTON MEDICAL, INC Abdominal aortic aneurysms: systems and methods of use
9375336, Jan 29 2015 Intact Vascular, Inc.; INTACT VASCULAR, INC Delivery device and method of delivery
9375337, Jan 29 2015 INTACT VASCULAR, INC Delivery device and method of delivery
9387063, Aug 09 2005 C R BARD, INC Embolus blood clot filter and delivery system
9408607, Jul 02 2009 Edwards Lifesciences CardiAQ LLC Surgical implant devices and methods for their manufacture and use
9408729, Oct 22 2006 IDev Technologies, Inc. Secured strand end devices
9408730, Oct 22 2006 IDev Technologies, Inc. Secured strand end devices
9408734, Sep 03 2003 Bolton Medical, Inc. Methods of implanting a prosthesis
9408735, Sep 03 2003 Bolton Medical, Inc. Methods of implanting a prosthesis and treating an aneurysm
9421115, Jul 10 2008 C. R. Bard, Inc. Device for catheter sheath retraction
9433520, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
9439751, Mar 15 2013 BOLTON MEDICAL, INC Hemostasis valve and delivery systems
9445929, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
9456914, Jan 29 2015 INTACT VASCULAR, INC Delivery device and method of delivery
9486348, Feb 01 2011 ST JUDE MEDICAL, CARDIOLOGY DIVISION, INC Vascular delivery system and method
9498318, May 12 2005 C.R. Bard, Inc. Removable embolus blood clot filter
9522063, Apr 09 2010 Medtronic, Inc. Transcatheter prosthetic heart valve delivery system with recapturing feature and method
9539130, Oct 29 2012 Cook Medical Technologies LLC Low profile stepped delivery system
9549835, Mar 01 2011 Endologix LLC Catheter system and methods of using same
9554929, Apr 12 2012 Bolton Medical, Inc. Vascular prosthetic delivery device and method of use
9561124, Sep 03 2003 Bolton Medical, Inc. Methods of self-aligning stent grafts
9566178, Oct 21 2011 Edwards Lifesciences CardiAQ LLC Actively controllable stent, stent graft, heart valve and method of controlling same
9572652, Dec 01 2009 Lombard Medical Limited Modular endograft devices and associated systems and methods
9584777, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
9585743, Jul 31 2006 Edwards Lifesciences CardiAQ LLC Surgical implant devices and methods for their manufacture and use
9585776, Oct 22 2006 IDev Technologies, Inc. Secured strand end devices
9585782, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
9592137, Apr 04 2006 FLEXIBLE STENTING SOLUTIONS, INC Flexible stent
9602786, Jan 29 2015 Intact Vascular, Inc. Delivery device and method of delivery
9615909, Sep 25 1998 C.R. Bard, Inc. Removable embolus blood clot filter and filter delivery unit
9615949, Dec 30 2008 Cook Medical Technologies LLC Delivery device
9629736, Oct 22 2006 IDev Technologies, Inc. Secured strand end devices
9649211, Nov 04 2009 CONFLUENT MEDICAL TECHNOLOGIES, INC Alternating circumferential bridge stent design and methods for use thereof
9655712, Sep 03 2003 Bolton Medical, Inc. Vascular repair devices
9675486, Jan 13 2006 C.R. Bard, Inc. Stent delivery system
9687374, Mar 01 2011 Endologix LLC Catheter system and methods of using same
9700701, Jul 01 2008 Endologix LLC Catheter system and methods of using same
9724223, Dec 04 2014 ABBOTCARDIOVASCULAR SYSTEMS INC. Delivery system for a self expanding stent
9724224, Nov 04 2014 ABBOTT CARDIOVASCULAR SYSTEMS INC Methods and systems for delivering an implant using a planetary gear actuation assembly
9737426, Mar 15 2013 Lombard Medical Limited Endograft device delivery systems and associated methods
9750625, Jun 11 2008 C.R. Bard, Inc.; C R BARD, INC Catheter delivery device
9770322, Mar 13 2012 W. L. Gore & Associates, Inc. External steerable fiber for use in endoluminal deployment of expandable devices
9782282, Nov 14 2011 W L GORE & ASSOCIATES, INC External steerable fiber for use in endoluminal deployment of expandable devices
9801745, Oct 21 2010 C R BARD, INC System to deliver a bodily implant
9814611, Jul 31 2007 Edwards Lifesciences CardiAQ LLC Actively controllable stent, stent graft, heart valve and method of controlling same
9827093, Oct 21 2011 Edwards Lifesciences CardiAQ LLC Actively controllable stent, stent graft, heart valve and method of controlling same
9827123, Mar 13 2009 Bolton Medical, Inc. System for deploying an endoluminal prosthesis at a surgical site
9827125, Jul 31 2006 Edwards Lifesciences CardiAQ LLC Sealable endovascular implants and methods for their use
9833346, Apr 04 2014 W L GORE & ASSOCIATES, INC Deployment handle for a medical device deployment system
9872784, Jan 19 2009 W. L. Gore & Associates, Inc. Forced deployment sequence
9877857, Sep 03 2003 BOLTON MEDICAL, INC Sheath capture device for stent graft delivery system and method for operating same
9877858, Nov 14 2011 W L GORE & ASSOCIATES, INC External steerable fiber for use in endoluminal deployment of expandable devices
9883962, Feb 23 2012 Terumo Kabushiki Kaisha Stent delivery system
9895242, Oct 22 2006 IDEV TECHNOLOGIES, INC Secured strand end devices
9907686, Sep 03 2003 Bolton Medical, Inc. System for implanting a prosthesis
9913743, Sep 03 2003 Bolton Medical, Inc. Methods of implanting a prosthesis and treating an aneurysm
9925074, Feb 01 1999 Plain woven stents
9925080, Sep 03 2003 Bolton Medical, Inc. Methods of implanting a prosthesis
9974676, Aug 09 2013 Cook Medical Technologies LLC Wire collection device with geared advantage
9974677, Aug 20 2013 Cook Medical Technologies LLC Wire collection device for stent delivery system
9974678, Mar 10 2014 Cook Medical Technologies LLC Wire collection device with varying collection diameter
D888946, Nov 04 2015 ABBOTT CARDIOVASCULAR SYSTEMS INC Medical device handle
Patent Priority Assignee Title
2722931,
4474572, Sep 29 1981 American Home Products Corporation Implanting device and implant magazine
4655771, Apr 30 1982 AMS MEDINVENT S A Prosthesis comprising an expansible or contractile tubular body
5383892, Nov 08 1991 MEADOX MEDICALS, INC Stent for transluminal implantation
5415664, Mar 30 1994 Corvita Corporation Method and apparatus for introducing a stent or a stent-graft
5433723, Oct 11 1991 Angiomed AG Apparatus for widening a stenosis
5707376, Feb 01 1995 Cook Medical Technologies LLC Stent introducer and method of use
5968052, Nov 27 1996 Boston Scientific Corporation Pull back stent delivery system with pistol grip retraction handle
6143021, Jul 10 1998 Boston Scientific Scimed, Inc Stent placement instrument and method of assembly
6371963, Nov 17 1998 BOSTON SCIENTIFIC LTD Device for controlled endoscopic penetration of injection needle
6527779, Jul 10 2000 Endotex Interventional Systems, Inc. Stent delivery device
EP747021,
EP1078611,
WO18330,
WO203888,
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Mar 23 2002YAMPOLSKY, ILYASciMed Life Systems, INCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0127640907 pdf
Mar 29 2002WELDON, JAMESSciMed Life Systems, INCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0127640907 pdf
Apr 04 2002SciMed Life Systems, Inc.(assignment on the face of the patent)
Jan 01 2005SciMed Life Systems, INCBoston Scientific Scimed, IncCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0185050868 pdf
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